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  • There's Proof of Evolution Hiding in Your DNA

    Learn more about your personal DNA story by going to https://23andMe.com/okay
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    Uploaded 24-07-18

    Humans are special, and we got that way thanks to evolution and natural selection. The proof is right there in our bodies! From anatomy to genes, here are some stories of how you got to be the way you are.

    References:

    Miller, Kenneth R. "The Human Instinct: How We Evolved to Have Reason, Consciousness, and Free Will" Simon and Schuster (2018) https://amzn.to/2JD3d3c

    Booth, H. A. F., and Holland, P. W. (2004). Eleven daughters of NANOG. Genomics, 84(2), 229-238.

    Brawand, D., Wahli, W., and Kaessmann, H. (2008). Loss of egg yolk genes in mammals and the origin of lactation and placentation. PLoS biology, 6(3), e63.

    Freyer, C., and Renfree, M. B. (2009). The mammalian yolk sac placenta. Journal of Experimental Zoology Part B: Molecular and Developmental Evolution, 312(6), 545-554.

    Yunis, J. J., and Prakash, O. (1982). The origin of man: a chromosomal pictorial legacy. Science, 215(4539), 1525-1530.


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    It’s Okay To Be Smart is hosted by Joe Hanson, Ph.D.
    Director: Joe Nicolosi
    Writer: Joe Hanson, Ph.D.
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    11 min
  • Ask Joe Stuff - 2 Million Subscribers Edition!

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    Uploaded 20-03-18

    We’re celebrating our 2 millionth subscriber with a special Q and A episode!

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    It’s Okay To Be Smart is hosted by Joe Hanson, Ph.D.
    Director: Joe Nicolosi
    Writer: Joe Hanson, Ph.D.
    Creative Director: David Schulte
    Editor/animator: Karl Boettcher and Derek Borsheim
    Producer: Stephanie Noone and Amanda Fox

    Produced by PBS Digital Studios
    Music via APM
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    16 min
  • These Butt-Tickling Ants Are Endangered Butterfly Bodyguards | IN OUR NATURE

    Check out "Out of Our Elements" on PBS Terra! https://youtu.be/tp-FsXHVFoU
    “In Our Nature” is a NEW special limited series on It’s Okay To Be Smart!
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    Uploaded 18-08-21

    Seemingly distant ecosystems, even half a world apart, are connected in surprising ways. In this special limited series, Emily Graslie and Trace Dominguez join me as we explore the universal rules of life that tie together Earth’s living systems. In episode 4, we look at some surprising ways that species use teamwork in order to survive. Why is one African tree full of ants? Why are there birds nesting in girafe armpits? What surprising guard animal keeps an endangered butterfly larva from becoming wasp food? Welcome to the world of mutualisms and animal partnerships.

    In Our Nature is a special miniseries produced by It’s Okay To Be Smart for PBS. Stay tuned for more episodes coming this summer, here on our YouTube channel!

    Original Production Funding provided by: Anne Ray Foundation, a Margaret A. Cargill Philanthropy

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    26 min
  • What's the Eldest Living Creature?
    Big thank you to Rachel for lending her voice and photos to this episode!
    Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/PBSDSDonate
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    "The Oldest Living Things In The World" by Rachel Sussman:
    Amazon: http://amzn.to/1uZ6wJp
    Public Library: http://bit.ly/1s2gCnb
    Species featured in this video:
    Bristlecone pine: http://bit.ly/1o3zW4p
    Baobab: http://bit.ly/1qJo6ul
    Pando: http://bit.ly/1tLlRLU
    Map lichens: http://bit.ly/WVgoFh
    Yucca: http://bit.ly/1uZ71my
    Creosote: http://bit.ly/1xUZrpj
    Llareta: http://bit.ly/1ANGYPC
    Black coral: http://bit.ly/1zLWn1s
    Barrel sponge: http://bit.ly/1opvDjb
    Posidonia sea grass: http://bit.ly/UVoN9u
    Pond cypress: http://bit.ly/1okVPY6
    "Old Tjikko" spruce: http://bit.ly/1s30eq7
    Stromatolites: http://bit.ly/1pyymXs
    Siberian Actinobacteria: http://bit.ly/1xUZ5yR
    Joe Hanson - Host and writer
    Joe Nicolosi - Director
    Amanda Fox - Producer, Spotzen IncKate Eads - Associate Producer
    Editing/Motion Graphics - Andrew Matthews
    Gaffer - John Knudsen
    Theme music:
    "Ouroboros" by Kevin MacLeod
    Stock images via Shutterstock
    Produced for PBS Digital Studios
    Unless otherwise indicated, all photos are © Rachel Sussman, used with permission
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    8 min
  • It's Okay To Be Smart is on Patreon!

    PBS Member Stations rely on viewers like you. To support your local station, go to: http://to.pbs.org/DonateOKAY
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    Uploaded 10-09-19

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    6 min
  • How Some Animals Engineered Air Conditioning

    Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/PBSDSDonate

    Uploaded 13-06-17

    Thanks to the non-profit edX.org for sponsoring this video. Go to http://bit.ly/edXSmart to learn more from some of the top universities in the world.
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    Are humans nature’s greatest architects? When we look elsewhere in nature, we find some pretty amazing animal architects. Species like ants, termites, prairie dogs, birds, and more have engineered some incredible structures. This week we look at how a few of these species have mastered physics to install air conditioning in their homes!

    Special thanks to Dianna Cowern AKA Physics Girl for helping us get the physics right in this video! https://www.youtube.com/user/physicswoman

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    REFERENCES:

    Gould, James L., and Carol Grant Gould. Animal architects: building and the evolution of intelligence. Basic Books (AZ), 2007.

    Hansell, M. (2007). Built by animals: the natural history of animal architecture. OUP Oxford.

    Cosarinsky, M. I., and Roces, F. (2012). The construction of turrets for nest ventilation in the grass-cutting ant Atta vollenweideri: import and assembly of building materials. Journal of Insect Behavior, 25(3), 222-241.

    Kleineidam, C., Ernst, R., and Roces, F. (2001). Wind-induced ventilation of the giant nests of the leaf-cutting ant Atta vollenweideri. Naturwissenschaften, 88(7), 301-305.

    King, H., Ocko, S., and Mahadevan, L. (2015). Termite mounds harness diurnal temperature oscillations for ventilation. Proceedings of the National Academy of Sciences, 112(37), 11589-11593.

    Vogel, S., Ellington, C. P., and Kilgore, D. L. (1973). Wind-induced ventilation of the burrow of the prairie-dog, Cynomys ludovicianus. Journal of Comparative Physiology A: Neuroethology, Sensory, Neural, and Behavioral Physiology, 85(1), 1-14.

    Bahadori, M. M. (1978). Passive cooling systems in Iranian architecture. Sci. Am.;(United States), 238(2).

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    It’s Okay To Be Smart is hosted by Joe Hanson, Ph.D.
    Director: Joe Nicolosi
    Writer: Joe Hanson
    Producer/editor/animator: Andrew Matthews
    Producer: Stephanie Noone and Amanda Fox

    Produced by PBS Digital Studios
    Music via APM
    Stock images from Shutterstock http://www.shutterstock.com

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    7 min
  • Are We All Family?
    Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/PBSDSDonate
    This is part 3 of our special series on Human Ancestry!
    Watch the entire series here ►► http://bit.ly/OKTBSHuman
    ↓↓↓More info and sources below ↓↓↓
    In part 3 of our special series on human ancestry, we investigate how closely related we all really are. Basic math tells us that all humans share ancestors. But you’ll be amazed at how recently those shared ancestors lived. Thanks to genetic data in the 21st century, we’re even discovering that we really are all descended from one mother.
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    REFERENCES:
    Chang, Joseph T. "Recent common ancestors of all present-day individuals." Advances in Applied Probability 31.04 (1999): 1002-1026.
    Jorde, Lynn B. "Genetic variation and human evolution." (2003).
    Rohde, Douglas LT. "On the common ancestors of all living humans." (2003)
    Rohde, Douglas LT, Steve Olson, and Joseph T. Chang. "Modelling the recent common ancestry of all living humans." Nature 431.7008 (2004): 562-566.
    Stringer, Chris. “Lone survivors: How we came to be the only humans on earth.” Macmillan, 2012. http://amzn.to/2oIFg3q (Library: http://www.worldcat.org/oclc/855581724)
    Tattersall, Ian. “Masters of the planet: the search for our human origins.” Macmillan, 2012. http://amzn.to/2pOZrKS (Library: http://www.worldcat.org/oclc/733231407)
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    It’s Okay To Be Smart is hosted by Joe Hanson, Ph.D.
    Director: Joe Nicolosi
    Writer: Joe Hanson
    Producer/editor/animator: Andrew Matthews
    Producer: Stephanie Noone and Amanda Fox
    Produced by PBS Digital Studios
    Music via APM
    Stock images from Shutterstock http://www.shutterstock.com

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    9 min
  • What is Impossible in Evolution?

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    Uploaded 17-03-21

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    Could humans ever evolve to have wings? Why don’t fish have propellers? Why don’t tigers have wheels? Why don’t zebras have laser turrets? These might all seem like stupid questions (and maybe they are!) but they can teach us a lot about how evolution actually works, and how it doesn’t work.

    References: https://sites.google.com/view/whatisimpossible-references/home

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    24 min
  • There Was No Inaugural Human
    PBS Member Stations rely on viewers like you. To support your local station, go to: http://to.pbs.org/DonateOKAY
    ↓ More info and sources below ↓
    If you traced your family tree back 185 million generations through evolution, you wouldn't be looking at a human, a primate, or even a mammal. You'd be looking at a fish. So where along that line does the first human show up? The answer may surprise you!
    Inspired by Richard Dawkins' "The Magic of Reality" http://amzn.to/1eFPE0v
    Also check out Richard Dawkins' "The Ancestor's Tale" http://amzn.to/1fbf17e
    Images of prehistoric species used in this episode:
    Tiktaalik, Procunsul, Plesiadapsis, Juramaia, Hylonomus - by Nobu Tamura (http://spinops.blogspot.com/)
    Homo erectus (by Tim Evanson) http://bit.ly/1uwI5zu
    Joe Hanson - Host and writer
    Joe Nicolosi - Director
    Amanda Fox - Producer, Spotzen IncKate Eads - Associate Producer
    Katie Graham - Director of Photography
    Andrew Matthews - Editor and motion graphics
    John Knudsen - Gaffer
    Music:
    "Ouroboros" by Kevin MacLeod
    Produced for PBS Digital Studios
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    6 min
  • It's Okay To Be Smart - Bloopers Vol. 2: The Sequel
    We're taking the week off while we work on some special episodes for the next few weeks. In the meantime, here's me messing up. A lot.
    Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/PBSDSDonate
    Subscribe to It's Okay To Be Smart: http://bit.ly/iotbs_sub
    Joe Hanson - Host and writer
    Joe Nicolosi - Director
    Amanda Fox - Producer, Spotzen IncKate Eads - Associate Producer
    Katie Graham - Director of Photography
    Editing/Motion Graphics - Arts + Labor
    Gaffer - John Knudsen
    Theme music:
    "Ouroboros" by Kevin MacLeod
    Produced for PBS Digital Studios
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    6 min

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We give you deep answers to simple questions about science and the rest of the universe. And also dad jokes.